Know Your Environment. Protect Your Health.

Bromodichloromethane

Lakewood Water District

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

35

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.258 ppb102ND - 2.05 ppb
20190.105 ppb131ND - 1.37 ppb
2020N/A00N/A
20210.483 ppb42ND - 1.24 ppb
20220.202 ppb62ND - 0.660 ppb
20230.740 ppb220.700 ppb - 0.780 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-22ND
2018-07-12ND
2018-07-12ND
2018-07-12ND
2018-07-25ND
2018-07-25ND
2018-07-25ND
2018-08-27ND
2018-09-192.05 ppb
2018-09-190.530 ppb
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-21ND
2019-06-21ND
2019-06-21ND
2019-06-21ND
2019-07-23ND
2019-09-111.37 ppb
2019-09-11ND
2021-05-054115227ND
2021-05-054115955ND
2021-09-0741798890.690 ppb
2021-09-0741798881.24 ppb
2022-05-114286300ND
2022-05-114286297ND
2022-05-114286299ND
2022-08-114331437ND
2022-09-2743704940.550 ppb
2022-09-2743704970.660 ppb
2023-09-1445258010.780 ppb
2023-09-1445258000.700 ppb